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Free UK delivery on every order. Packed within 1 business day; typically delivered in 2–4 business days (3–6 for Highlands, islands and NI). Every parcel is tracked.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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sixcow Replacement Mineral Cartridge for Nature2 DuoClear W28000/W28001 is a direct-fit mineral cartridge designed to renew Zodiac DuoClear, Fusion, Fusion Soft and Vision Pro pool systems for pools up to 35,000 gallons.
This cartridge is manufactured as an OEM-style replacement to restore mineral sanitation and filtration support in both above-ground and inground pools that use Nature2 DuoClear 25 and 35 systems. It matches part numbers W28000, W28001, W26000 and W26001 and offers a durable ceramic-based core inside a robust PVC housing for long-term performance. The unit is intended to be a straightforward swap so you can get your system back to working condition with minimal fuss.
The cartridge is engineered to the same footprint and connection dimensions as the original W28000/W28001 cartridges, so it inserts directly into the DuoClear, Fusion, Fusion Soft, Vision Pro and compatible systems. No adapters are required when you're replacing a worn or expired cartridge.
The cartridge combines a ceramic-based mineral core with a heavy-duty PVC outer shell to resist corrosion, impacts and deformation during routine pool use. That construction keeps the cartridge stable inside the system and helps maintain water flow and mineral release over its service life.
Installation is tool-free and takes only a few minutes: unscrew the cap, remove the old cartridge, insert the replacement, and reassemble. No special plumbing skills are required, making this a convenient upkeep item for homeowners who prefer to maintain their pool themselves.
sixcow backs this replacement cartridge with a customer-friendly policy that covers satisfaction and manufacturing defects. If the cartridge fails to meet your expectations or has a qualifying defect, follow the return instructions to access the listed guarantees.
Who is this for: The sixcow replacement mineral cartridge is aimed at pool owners and maintenance professionals who need an affordable, dependable swap for worn Nature2 DuoClear cartridges. It suits anyone operating Zodiac DuoClear, Fusion, Fusion Soft or Vision Pro systems in above-ground or inground pools up to 35,000 gallons, especially those who prefer a quick, tool-free replacement and value a durable ceramic/PVC build with warranty protection.
Q: Does this cartridge fit a Zodiac DuoClear 35 system?
A: Yes. It’s a direct-fit replacement for DuoClear 25 and 35 systems and matches W28000/W28001 part numbers.
Q: How many gallons will this cartridge treat?
A: This cartridge is sized to treat pools up to 35,000 gallons when used in compatible systems.
Free UK delivery on every order — packed within 1 business day, arriving in 2–4 business days.
Free 30-day returns — email us for a prepaid label; refunds land within 3–5 business days of the return arriving.
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